321307580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{8069}}^1$

素因数の和:8270

約数の個数: 48

約数和(自身を含む): 740244960

約数和(自身を除く): 418937380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 181, 220, 362, 724, 905, 1810, 1991, 3620, 3982, 7964, 8069, 9955, 16138, 19910, 32276, 39820, 40345, 80690, 88759, 161380, 177518, 355036, 443795, 887590, 1460489, 1775180, 2920978, 5841956, 7302445, 14604890, 16065379, 29209780, 32130758, 64261516, 80326895, 160653790, 321307580]

約数ペア:

[(1, 321307580), (2, 160653790), (4, 80326895), (5, 64261516), (10, 32130758), (11, 29209780), (20, 16065379), (22, 14604890), (44, 7302445), (55, 5841956), (110, 2920978), (181, 1775180), (220, 1460489), (362, 887590), (724, 443795), (905, 355036), (1810, 177518), (1991, 161380), (3620, 88759), (3982, 80690), (7964, 40345), (8069, 39820), (9955, 32276), (16138, 19910)]